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Améliorere la simulation des pièces à fibres de verre / Valérie Hosdez in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 862 (11/2008)
[article]
Titre : Améliorere la simulation des pièces à fibres de verre Type de document : texte imprimé Auteurs : Valérie Hosdez, Auteur ; Laurence Meylheuc, Auteur Année de publication : 2008 Article en page(s) : p. 58-61 Langues : Français (fre) Catégories : Composites à fibres courtes
Composites à fibres de verre -- Moulage par injection
Contraintes (mécanique)
Contraintes thermiques
Distribution et orientation des fibres
Gauchissement (matériaux)
Retrait au moulage
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : Une thèse propose une méthode de calcul des retraits et des déformations de pièces thermoplastiques injectées, chargées de fibres de verre courtes, afin de rendre plus fiables les outils de simulation. Note de contenu : - Contraintes figées, contraintes thermiques
- Tenir compte de l'orientation des fibres
- Indispensable caractérisation
- Une géométrie test
- Approche en trois phasesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21217
in PLASTIQUES & CAOUTCHOUCS MAGAZINE > N° 862 (11/2008) . - p. 58-61[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010846 - Périodique Bibliothèque principale Documentaires Disponible An aeronautics and space-oriented research group / Bruno Castanié in JEC COMPOSITES MAGAZINE, N° 122 (07/2018)
[article]
Titre : An aeronautics and space-oriented research group Type de document : texte imprimé Auteurs : Bruno Castanié, Auteur Année de publication : 2018 Article en page(s) : p. 41-47 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Assemblages multimatériaux
Avions -- Matériaux
Bois
Composites -- Analyse
Composites -- Défauts
Composites -- Propriétés mécaniques
Composites à fibres -- Moulage par injection
Composites à fibres courtes
Composites à fibres de carbone
Construction sandwich
Epoxydes
Essais (technologie)
Essais dynamiques
Modélisation tridimensionnelle
Polyéther éther cétone
Polysulfures de phénylène
Simulation par ordinateur
Thermocinétique
TitaneIndex. décimale : 668.4 Plastiques, vinyles Résumé : The Clément Ader Institute's (ICA) Composite Materials and Structures research group (UMR CNRS 5312) was set up in 2010 after the Institute was created by decree in July 2009. The group conducts transversal research on materials, processes and strcutures, with a strong focus on numerical and experimental aspects. Note de contenu : - MATERIALS AND PROCESSES : Study and modelling of resin flow in fibrous reinforcements - Multiphysics analysis and functionalization of composite materials
- PROCESSES AND STRUCTURES : Understanding and modelling variability sources in composite structures - Analysis and modelling of shape defects generated during the manufacture of composite structures - Analysing the links between manufacturing/machining parameters and mechanical strength - Composites machining
- STRUCTURES AND MODELLING STRATEGIES : Short fibre injection - Modelling strategies - Wood-based eco-structures
- Fig. 1 : The Roctool process
- Fig. 2 : Simulation of resin flow in a 3D reinforcement at different scales
- Fig. 3 : Modelling thermal conductivity in a doped composite material
- Fig. 4 Example of ply thickness spatial evolution
- Fig. 5 : A350 rib spring-back computation
- Fig. 6 : Hole roughness analysis to define drilling quality indicators
- Fig. 7 : Chip formation analysis during CFRP/Ti multi-material drilling (simulation)
- Fig. 8 : Simulation of short fibre injection in a complex part (aircraft fitting)
- Fig. 9 : DPM modelling
- Fig. 10 : Semi-continuous modelling for frontal impact of rotor blades
- Fig. 11 : Analysis of wood-based structures
- Fig. 12 : The Vertex test rig
- Fig. 13 : Edge ring crack torsion test (ERCT)
- Fig. 14 : STIMPACT platform gas guns
- EXPERIMENTAL METHODS AND MEANS : Complex loading - Measuring methods and specific tests - Dynamic testingEn ligne : https://drive.google.com/file/d/1ZE2BbFr85BY2Wh5vhaXeLfGDN9apmWta/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31621
in JEC COMPOSITES MAGAZINE > N° 122 (07/2018) . - p. 41-47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20053 - Périodique Bibliothèque principale Documentaires Disponible Anisotropic simulation of short fiber-reinforced plastics / Vanessa Kett in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 2 (2022)
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Titre : Anisotropic simulation of short fiber-reinforced plastics : Factoring fiber orientation into structural simulations Type de document : texte imprimé Auteurs : Vanessa Kett, Auteur ; Jörg Helfenstein, Auteur Année de publication : 2022 Article en page(s) : p. 42-44 Langues : Anglais (eng) Catégories : Anisotropie
Composites à fibres courtes
Design industriel
Distribution et orientation des fibres
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : Short fiber-reinforced plastics are used for many technically demanding applications. For efficient development processes and high product quality, their anisotropic material properties must be factored into the design cycle. A simple approach often taken is to reduce the material stiffness. However, a more accurate approach is to consider the effective fiber orientation. This article discusses the pros and cons of both approaches. Note de contenu : - Realistic mapping of local stiffness
- Comparison of isotropic and anisotropic simulations
- Deviations within the expected range
- Use of the anisotropic simulation in product development
- Fig. 1 : Typical workflow for simulating short fiber-reinforced materials in Ansys Workbench. (A) Ansys Material Designer : generating an anisotropic material model, (C) Injection Molding Data : importing fiber orientations, (B) Static structural: definition of the FE model
- Fig. 2 : Main fiber orientations mapped in Ansys Mechanical from the injection molding simulation at a through-hole on the pump head
- Fig. 3 : Comparison of the experimentally determined stress-strain curve and the simulated values for a tensile test carried out according to DIN EN ISO 527 (material : PPA-GF40)
- Fig. 4 : Comparison of different part simulations with values determined experimentally in a part test (normalized values)En ligne : https://drive.google.com/file/d/1d9nFZBQBcRe5FJCuRQCVkLoJEgf9OpL6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37308
in KUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 2 (2022) . - p. 42-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23299 - Périodique Bibliothèque principale Documentaires Disponible Better computation of fiber-reinforced engine components / Kristin Raschke in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 10 (10/2019)
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Titre : Better computation of fiber-reinforced engine components : Precise prediction of the vibration behavior of structural parts through FEM simulation Type de document : texte imprimé Auteurs : Kristin Raschke, Auteur ; Wolfgang Korte, Auteur Année de publication : 2019 Article en page(s) : p. 118-123 Langues : Anglais (eng) Catégories : Automobiles -- Moteurs -- Pièces
Composites à fibres courtes
Composites à fibres de verre -- Propriétés mécaniques
Distribution et orientation des fibres
Eléments finis, Méthode des
Matières plastiques dans les automobiles
Polyamide 66
Prévision, Théorie de la
Simulation par ordinateur
Vibrations (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : Fiber-reinforced plastics are playing an ever more important role in the development of low-noise engines. Taking the example of an automobile engine bracket, a method is presented here with which the vibration behavior of short fiber-reinforced structural parts can be more precisely predicted. The method developed is further characterized by its comparatively simple application and scalability. It therefore allows even large models to be efficiently computed. Note de contenu : - Computational prediction of the influence of fiber orientation
- Experimental parameter identification
- Validation on the part
- Fig. 1 : Sound parths from the power unit to the driver's ear
- Fig. 2 : Multi-scale material model : fundamentals for the computation of the composite material behavior on the basis of the reinforcing fibers and the matrix polymer
- Fig. 3 : The integrative computation approach necessitated mapping between the computation models
- Fig. 4 : Parameter identification for the anisotropic material model : the fiber orientation distributions determined experimentally in test specimens serve for calibration of the material model
- Fig. 5 : Schematic test configuration and transmission behavior in the flexural vibration test
- Fig. 6 : Flexural vibration test : result of the material model calibration
- Fig. 7 : FEM model and test configuration : engine bracket on crankcase
- Fig. 8 : Integrative computation approach : overview of the method for the engine bracket
- Fig. 9 : Computed and measured natural frequencies of the engine bracket
- Fig. 10 : Transmission function : anisotropic vs. isotropic simulation of the engine bracket, dotted line : measurement, solid line : FEMEn ligne : https://drive.google.com/file/d/1exs-4CdN0BxuMb1LjnjHPq41vsOGL_Fh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33805
in KUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 10 (10/2019) . - p. 118-123[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21238 - Périodique Bibliothèque principale Documentaires Disponible Comparative effects of mEOC on the structures and properties of PP/SGF and PP/EOC/SGF composite foams / J.-N. Yang in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 3 (07/2016)
[article]
Titre : Comparative effects of mEOC on the structures and properties of PP/SGF and PP/EOC/SGF composite foams Type de document : texte imprimé Auteurs : J.-N. Yang, Auteur Année de publication : 2016 Article en page(s) : p. 309-320 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anhydride maléique
Composites à fibres courtes
Composites à fibres de verre
Copolymère éthylène octane
Copolymères greffés
Mousses plastiques
Mousses plastiques -- Propriétés mécaniques
PolypropylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : To improve the impact toughness of short glass fiber (SGF) reinforced polypropylene (PP) composite foams, maleic anhydride grafted ethylene-?-octene copolymer (mEOC) was employed as impact modifier and interfacial compatibilizer. And for comparison, mEOC was also introduced into PP/EOC/SGF composite foams. Then, the foaming qualities, interfacial structures and mechanical properties of samples against varying mEOC contents were examined and compared in detail. Results showed that adequate mEOC significantly improved the foamabilities of the composites, while the optimized mass fraction was 8% for PP/SGF composite foams and 3% for PP/EOC/SGF system. Increased mEOC facilitated the higher impact toughness, which was increased by 77% for PP/SGF composite foams, whereas only 5% for PP/EOC/SGF foams. However, the flexural strengths were just improved slightly, while compressive strengths decreased monotonically with mEOC for the investigated composite foams. Note de contenu : - EXPERIMENTAL : Raw materials - Sample fabrication and testing
- RESULTS ANS DISCUSSION : Foaming qualities - Interfacial morphologies - Mechanical propertiesDOI : 10.3139/217.3171 En ligne : https://drive.google.com/file/d/18pjaxIrvwQIh7LQf5HFKccdFyO0JDoKK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26643
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Code-barres Cote Support Localisation Section Disponibilité 18175 - Périodique Bibliothèque principale Documentaires Disponible Comparison of fibre reorientation of short-and long-fibre reinforced polypropylene by injection molding with a rotating mold core / Philipp Land in INTERNATIONAL POLYMER PROCESSING, Vol. 38, N° 1 (2023)
PermalinkComposite reduces vehicle and sunroof weight and enables assembly and process innovations / Ramesh Iyer in JEC COMPOSITES MAGAZINE, N° 69 (11-12/2011)
PermalinkCost-effective SiC fibre enabling new CMC applications / David Mammarella in JEC COMPOSITES MAGAZINE, N° 90 (06-07/2014)
PermalinkCumulative failures prevention / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 1 (2021)
PermalinkDesign methodology for parts subject to internal pressure / Thorsten Krumpholz in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 2 (2022)
PermalinkDétermination des coefficients rhéologiques d'un thermoplastique chargé de fibres courtes / Gilles Ausias in LES CAHIERS DE RHEOLOGIE, Vol. XI, N° 3-4 (10/1993)
PermalinkDielectric behavior of OPEFB reinforced polycaprolactone composites at X-band frequence / Ahmad Fahad in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 1 (03/2016)
PermalinkDirection-dependent characteristics / Tamara van Roo in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 4 (04/2019)
PermalinkEffect of the varying percentage diss fiber on mechanical behaviour of the based polyester bio-composite / Lakhemissi Touam in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 3 (06/2021)
PermalinkEffects of zinc borate on the flame retardancy performance of aluminum diethylphosphinate in polyamide-6 and its composites / O. Polat in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)
PermalinkEvaluation of thermo-mechanical and wear behavior of short carbon fibre vinyl-ester filled homogenous and their functionally graded composites / B. Gangil in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 2 (05/2013)
PermalinkFibers and nano-fillers combined / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 3 (03/2013)
PermalinkFibers skillfully concealed / Andreas Schobel in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 1-2 (01-02/2015)
PermalinkFlock fibre-reinforced laminar composites for improved Mode I fracture toughness / Yong K. Kim in JEC COMPOSITES MAGAZINE, N° 110 (01-02/2017)
PermalinkFlow-fiber coupled viscosity in injection molding simulations of short fiber reinforced thermoplastics / Tianyi Li in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 2 (05/2019)
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